1022012201021 has 16 divisors (see below), whose sum is σ = 1180729021824. Its totient is φ = 866525561664.

The previous prime is 1022012200987. The next prime is 1022012201033. The reversal of 1022012201021 is 1201022102201.

It is not a de Polignac number, because 1022012201021 - 2³⁰ = 1020938459197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022012200987 and 1022012201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022012201071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1903415 + ... + 2380548.

It is an arithmetic number, because the mean of its divisors is an integer number (73795563864).

Almost surely, 2^{1022012201021} is an apocalyptic number.

It is an amenable number.

1022012201021 is a deficient number, since it is larger than the sum of its proper divisors (158716820803).

1022012201021 is a wasteful number, since it uses less digits than its factorization.

1022012201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4284340.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1022012201021 its reverse (1201022102201), we get a palindrome (2223034303222).

The spelling of 1022012201021 in words is "one trillion, twenty-two billion, twelve million, two hundred one thousand, twenty-one".